A steady stream of Dianemo X86 users are successully updating to Ubuntu 14.04LTS - which is great news. I expect this weekend will be a busy time for Updating systems and I also expect a few shouts for help. So far every system has been successfully updated, sometimes with some manual intervention. Every day our installer gets small improvements from our experience with users upgrading - we thank you for all of those pieces of feedback on issues you hit.
Now some tips on upgrading your 12.04LTS Dianemo X86 systems...
If you are intending to update to 14.04LTS this weekend please remember to do a PAE Kernel compatibility test before you start - grab a 14.04LTS LiveCD/USBstick and boot your NC (and any MD's) from it. If your hardware boots ok then you are good to go for PAE Kernel compatibility. The only deal stoppers we have hit so far are users that have CPU's that are not PAE Kernel compatible. As far as we know this only affects Pentium M and Celeron M processors, and even then only early production chips. For most of you this test will be uneventful, its only really likely to affect you if you have older hardware.
Get the current Desktop Ubuntu 14.04LTS iso here; http://releases.ubuntu.com/14.04/ubuntu-14.04.2-desktop-i386.iso
This page contains details of how to add the forcepae
option to your Grub config. This can sometimes enable systems that fail the PAE Kernel test to boot. So try this if your system reports a PAE incompatibility; https://wiki.ubuntu.com/Lubuntu/AdvancedMethods#Pentium_M_and_Celeron_M
Another 'must do' item is to backup your system. I can't emphasize this enough... minimally do a backup of your Config in Web Admin. Make sure you download a copy of your backup to another system ie your Laptop/PC's local drive by clicking on the backup file you just made in Web Admin. See here for a mini howto guide; http://wiki.linuxmce.org/index.php/Dianemo_S#Backing_up_your_Dianemo_Database
If you can make an image backup of your systems boot volume that is also a great idea too.
Once you have completed the two steps above you are ready to start;
step 1: do-release-upgrade (this will take a long time...especially if your Internet connection is not fast)
step 2: run the Dianemo installer (**Not the updater**)
If you hit any problems then either PM me here on the forum or email me at email@example.com